RecruitingDiagnostic testThe SENTRY Study: Testing Whether Changes in Platelet RNA Enhance the Early Diagnosis of Ovarian CancerThe purpose of the SENTRY (Stability Enhanced Transcriptional Analytics) Study is to test whether combining a unique analytical approach with changes in platelet RNA expression accurately diagnoses ovarian cancer. Using retrospective data, the investigators have developed an approach that appears to accurately classify ovarian cancer with relatively high sensitivity and specificity. The SENTRY Study will build upon these retrospective analyses to prospectively recruit women with ovarian cancer or an ovarian mass (and healthy control women), obtain platelet RNA samples from whole blood, and perform validation analyses to test our hypothesis.